8.1.5 NAT Mapping Types

NAT supports five types of IP/port mapping. They are:

One to One: In One-to-One mode, the ADSL Router maps one local IP address to one global IP address.

Many to One: In Many-to-One mode, the ADSL Router maps multiple local IP addresses to one global IP address.

Many to Many Overload: In Many-to-Many Overload mode, the ADSL Router maps the multiple local IP addresses to shared global IP addresses.

Many-to-Many No Overload: In Many-to-Many No Overload mode, the ADSL Router maps each local IP address to a unique global IP address.

Server: This type allows you to specify inside servers of different services behind the NAT to be accessible to the outside world.

52